Paper pulps have been prepared from Gamar (Gmelina arborea, Roxb.)
wood of four age groups by the kraft process. Cooks were made with
active alkali and sulfidity ranging from 14,94 percent to 21.05 percent
and 14,12 percent to 20,12 percent respectively at 170° C, The best
pulp was obtained with 16 years old gamar wood at 14,94 percent
active alkali and 14,57 percent sulfidity under optimum condition.
Pulp-yield varied from 40,86 percent to 49,35 perecnt at various ages.
The physical strength and other properties of Gamar kraft pulp compared
favourably with those of other hardwood pulps prepared in the Forest
Research Institute, Chittagong,